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The early intervention of C. butyricum had no significant effect on the growth performance of Muscovy ducks. (A) The BW of the Muscovy ducks on Days 1, 3, 7, 10, and 14 (displayed as 1d, 3d, 7d, 10d, and 14d, respectively). (B) The ADG of the Muscovy ducks in different time periods. Data were expressed as the mean ± SD (n = 8) and analyzed by the unpaired two-tailed Student’s t-test. C, control group; CB, C. butyricum group.
